Analysis

  • max time kernel
    149s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28-12-2024 23:47

General

  • Target

    JaffaCakes118_3c9b9fd13eb430b92e8dcd60b4fea2d66707dbe457fb929876a6fe2d3b627994.exe

  • Size

    4.2MB

  • MD5

    f65a5e271ec9064c372e71f9c963dbc1

  • SHA1

    4e2577f81f3446013d1653dbeebca775af93c21d

  • SHA256

    3c9b9fd13eb430b92e8dcd60b4fea2d66707dbe457fb929876a6fe2d3b627994

  • SHA512

    be00159e3f120d0c801c25e6002f65edb2cf54b71f4ebc33448a649cc035eefe642e4a3b9ad3aaf61dbf5c1b3833dc8cf196cedac5d30734c9d28a8833d3d9bb

  • SSDEEP

    98304:0mn93jZ6GzwbUmZeljiD7xIe2OG/GBIsejbakq74BVDxVaehm9:0uN9pC4jiSe2O1yzvji+VCcq

Malware Config

Extracted

Family

metasploit

Version

windows/single_exec

Signatures

  • Glupteba

    Glupteba is a modular loader written in Golang with various components.

  • Glupteba family
  • Glupteba payload 20 IoCs
  • MetaSploit

    Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.

  • Metasploit family
  • Modifies Windows Firewall 2 TTPs 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Manipulates WinMonFS driver. 1 IoCs

    Roottkits write to WinMonFS to hide directories/files from being detected.

  • Checks for VirtualBox DLLs, possible anti-VM trick 1 TTPs 1 IoCs

    Certain files are specific to VirtualBox VMs and can be used to detect execution in a VM.

  • Drops file in Windows directory 2 IoCs
  • Event Triggered Execution: Netsh Helper DLL 1 TTPs 3 IoCs

    Netsh.exe (also referred to as Netshell) is a command-line scripting utility used to interact with the network configuration of a system.

  • Program crash 2 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies data under HKEY_USERS 64 IoCs
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs
  • Uses Task Scheduler COM API 1 TTPs

    The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.

Processes

  • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c9b9fd13eb430b92e8dcd60b4fea2d66707dbe457fb929876a6fe2d3b627994.exe
    "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c9b9fd13eb430b92e8dcd60b4fea2d66707dbe457fb929876a6fe2d3b627994.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    PID:3728
    • C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c9b9fd13eb430b92e8dcd60b4fea2d66707dbe457fb929876a6fe2d3b627994.exe
      "C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_3c9b9fd13eb430b92e8dcd60b4fea2d66707dbe457fb929876a6fe2d3b627994.exe"
      2⤵
      • Adds Run key to start application
      • Checks for VirtualBox DLLs, possible anti-VM trick
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2088
      • C:\Windows\system32\cmd.exe
        C:\Windows\Sysnative\cmd.exe /C "netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes"
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2044
        • C:\Windows\system32\netsh.exe
          netsh advfirewall firewall add rule name="csrss" dir=in action=allow program="C:\Windows\rss\csrss.exe" enable=yes
          4⤵
          • Modifies Windows Firewall
          • Event Triggered Execution: Netsh Helper DLL
          PID:1256
      • C:\Windows\rss\csrss.exe
        C:\Windows\rss\csrss.exe /301-301
        3⤵
        • Executes dropped EXE
        • Manipulates WinMonFS driver.
        • System Location Discovery: System Language Discovery
        • Modifies data under HKEY_USERS
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:1960
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /CREATE /SC ONLOGON /RL HIGHEST /TR "C:\Windows\rss\csrss.exe" /TN csrss /F
          4⤵
          • Scheduled Task/Job: Scheduled Task
          PID:212
        • C:\Windows\SYSTEM32\schtasks.exe
          schtasks /delete /tn ScheduledUpdate /f
          4⤵
            PID:324
          • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe
            C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe taskmgr.exe C:\Users\Admin\AppData\Local\Temp\csrss\injector\NtQuerySystemInformationHook.dll
            4⤵
            • Executes dropped EXE
            • Suspicious behavior: EnumeratesProcesses
            PID:2260
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 2088 -s 816
          3⤵
          • Program crash
          PID:5004
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -u -p 3728 -s 812
        2⤵
        • Program crash
        PID:5016
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 460 -p 3728 -ip 3728
      1⤵
        PID:4280
      • C:\Windows\SysWOW64\WerFault.exe
        C:\Windows\SysWOW64\WerFault.exe -pss -s 412 -p 2088 -ip 2088
        1⤵
          PID:2496

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\Local\Temp\csrss\injector\injector.exe

          Filesize

          281KB

          MD5

          d98e33b66343e7c96158444127a117f6

          SHA1

          bb716c5509a2bf345c6c1152f6e3e1452d39d50d

          SHA256

          5de4e2b07a26102fe527606ce5da1d5a4b938967c9d380a3c5fe86e2e34aaaf1

          SHA512

          705275e4a1ba8205eb799a8cf1737bc8ba686925e52c9198a6060a7abeee65552a85b814ac494a4b975d496a63be285f19a6265550585f2fc85824c42d7efab5

        • C:\Windows\rss\csrss.exe

          Filesize

          4.2MB

          MD5

          f65a5e271ec9064c372e71f9c963dbc1

          SHA1

          4e2577f81f3446013d1653dbeebca775af93c21d

          SHA256

          3c9b9fd13eb430b92e8dcd60b4fea2d66707dbe457fb929876a6fe2d3b627994

          SHA512

          be00159e3f120d0c801c25e6002f65edb2cf54b71f4ebc33448a649cc035eefe642e4a3b9ad3aaf61dbf5c1b3833dc8cf196cedac5d30734c9d28a8833d3d9bb

        • memory/1960-27-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/1960-28-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/1960-33-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/1960-22-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/1960-31-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/1960-30-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/1960-29-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/1960-23-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/1960-26-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/1960-16-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/1960-34-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/1960-32-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/1960-25-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/1960-24-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/2088-9-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/2088-15-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/2088-8-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/2088-7-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/3728-0-0x0000000002F50000-0x000000000335F000-memory.dmp

          Filesize

          4.1MB

        • memory/3728-2-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/3728-4-0x0000000002F50000-0x000000000335F000-memory.dmp

          Filesize

          4.1MB

        • memory/3728-6-0x0000000003360000-0x0000000003C02000-memory.dmp

          Filesize

          8.6MB

        • memory/3728-5-0x0000000000400000-0x0000000000CBD000-memory.dmp

          Filesize

          8.7MB

        • memory/3728-1-0x0000000003360000-0x0000000003C02000-memory.dmp

          Filesize

          8.6MB